Copy-holder.



F. G. YAWMAN.

coPY HOLDER.

APPLICATION FILED APR. I7 1916.

1,262,728. Patented Apr. 16, 191e;

3 SHEETS-SHFET l.

i I{ir/32 il T9 F. G. YAWIVIAN.

COPY HOLDER.

APPLICATION FILED APR. I7, |916.

Patented Apr. 16, 1918.

3 SHEETS-SIET 2.

Figo?,

,m g V Patented pr. 16, 1918.

3 SHEETS-SHFET 3.

Figoo f: srarns rnnnnarcn e. Yawman, or nocnnsrna, Naw Yoan.

` COPY-HOLDER.

incarne.

Speciieation of 'Letters Yatent.

Application tiled Aprill'?, 19m. Serial No. 91,584.

To all whom t may concern? Be it known that'l, Fnnnnnron G. YAW- MAN, acitizen of the United States, and resident of Rochester, in the countyof Monroe and State of New York, have invented certain new andV usefullmprovemanipulated and, at the same time, is mexpensive to manufactureand not liable to get out of order. invention is to provide-fa Ilineguide which can be adjusted to different linesof vision and, at the sametime, will accommodate itself to work `of diii'erent thicknesses. A.

V further object ofthe invention is to provide a work clamping -meanswhich will operate to' apply la binding action on the work in proportionto the' weight of the work'so that heavy vvorlr will not release` itselffrom the clamping action.

To ythese and other ends,` the invention consists of certain parts andcombinations of parts all of whichA will be hereinafter described, theno vel features being pointed out inthe appended claims.

Figure 1 is a view 1n4 front elevationof l a copy holder constructed inaccordance with the present invention;

Fig. 2 is. a side view of Fig.` 3v is an enlarged view of a portion l ofthe upper' part `of the copyholder looking from the-rear;

Fig. l is a section lon the line Fig. 3;

Fig. 5 isa transverse section of the com- 'bined winding' drum andcounterbalance;

- Fig.6 is a detail'view showing the oon- I nection between theoperating mechanism and -the winding drum;

'showin different positions of the latter in dotted es;

Another object of the the copy holder; l

Fig.' 7 is a detail view of theline guide Fig. 8 is a section on theline 8 8, Fig. .2; and I Fig. 9 is an enlarged section on the line 9-9,Fig. 1.

En the illustrated embodiment of the invention, the relative movementbetween the line guide and the work holder is e'ected by mounting theline guide von the stationary frame and moving the work holder on suchframe. rIlie stationary frame preferably embodies a base portion' 1formed of sheet metalbent into U-shape in cross section, and havingstandards or guides 2 rising therefrom in parallel relation. The lowerends of the guides pass through openings in the base 1 and are anchoredon cross piences 3 Within said base, the ends of the cross piecesl beingturned downwardly and secured by rivets 4. The upper ends of thestandards 'or guides 2 are reduced at`5, and

l these reduced portions are surrounded by lsleeves 6 on theends of across plate 7.

Patented Apr. i6, 1918 i The .work holder is preferably in the form of asheet-metal plate 8 having its opposite vertical edges formed into tubes9, which surroundand .operate upon the standards or guides 2. On thiswork'holder, the work clamping means is arranged and to this end theupper edge of the support is formed with a bead 10 in spaced relation tothe upperends of the tubes 9. Within this bead 10 the rolled upper edgeof a plate 11 is secured, the lower edge of the plate l .11 being alsorolled and resting upon 'the upper ends ofthe ltubes 9. The plate 11extends from. oppositel sides of the work holder and on the extendedportions forwardly and downwardly-projecting arms 12 are 'arranged `Onthese arms is supported ,the clamping device for engaging the upperportion of the work.

This `clamping device is preferably in the form of a rod or bar13 havingfriction devices such as rubber-sleeves 111 thereon, and provided at itsends with laterally-turned portions 15 from whichv extend bearingportions v16 turning in the arms 12.. Beyond the bearing portions 16 theIstock is bent into loops which serve as finger pieces for swinging theclamp 13 on the pivot or bearing portions 16, this arrangement makingthe c amping portion eccentric with vreference to` the bearing or pivotportions 16. Two coiled springs 18 are each secured at one end to theclamping portion-13 and at the other end to one of theinwardly-extending lugs or projections 19 on the ends of the arms 12.These springs tend to swing the clamping portion 13 toward the workholder at a point above the turning axis of said clamp, so that theweight of the work tends to draw the clamp more firmly toward the Work-,holder plate 8. If the clamping portion 13 be swung to the oppositeside of the vertical line intersecting the turning axis, then thesprings 18 will tend to hold the clamping portion 13 away from thework-supporting plate 8. Stops 20 are bent inwardly from the arms 12 tocoperate with the laterallyturned or offset portions 15 and limit theoutward movement of the clamping portion 13.

It is desirable, in some instances, as with stenographers note books,not only to clamp the work in order to support it in the Work holder,but also to hold back leaves over the upper portion of the work holderand, to this end, a leaf-holding device is employed comprisingpreferably a helically -coiled spring 21 secured, at its ends 22, to theupper portions of the arms 12 in close proximity to the upper edge ofthe worlrholder.u This spring may be readily iexed llaterally to permitthe introduction of leaves beneath the same and will spring back inplace to hold such leaves. When the work is withdrawn from the workclamping portion 13, the leaves will slide from under the leaf-holdingdevice *without' any manipulation of the latter.

The stationary line guide is preferably in the form of a plate 23 havinga rolled edge 24 mounted to turn on a supporting part 25. Thissupporting part preferably has rearwardly-extending arms 26 withinwardlyturned portions 27 at their ends journaled in sleeves 28 which,in turn, are supported on outwardly-extending eccentrically-arrangedarms 29 on an-oscillatory supporting member 30 mounted to turn 1nsleeves 31 on the rear face. of the cross plate 7. This mount# ing ofthe line guide gives to the latter a wide range of adjustment, not onlyin a vertical direction, but also toward and from the work holder, sothat work of different thicknesses may be accommodated between the2 lineguide and the work-supporting plate.

The work-supporting plate or member8 is preferably counterbalanced and,to this end, a tape 32, secured at one end .at 33 to the plate 8, islooped about a pulley 34 on the rear face of the cross plate 7, and issecured, atits other end, at 35 toa drum 36 which is mounted on a shaft37 on the base 1. With- `in this drum a volute spring 38 is arrangedwith one end secured at'39 to the drum, and

fthe other end secured at 40 to the shaft 37 on I"which the drum turns,thus providing a counterbalance for the work-holding plate v8.

Arranged within said sleeve 42`is a shaft 45 which has a pin-and-slotconnec-I tion 46 with the sleeve, and has its -forward end projecting infront of the operator 41, where it is provided with a finger piece 47for moving the shaft 45 axially relatively to the sleeve 42. Thepin-and-slot connection 46 causes the shaft 45 to turn with the sleeve.The shaft 45 is also journaled at 48 in the lateral extension 44 at thebase frame, and carries at its rear end a beveled gear 49 meshing with abeveled gear 50 formed on the counterbalancing drum 36. A coiled spring51 surrounds the shaft 45 and abuts the bearing 48 at one end, and thecollar 52 on the shaft at the other end. A rolled portion 53 on theforward extension 44 incloses the coiled spring 51. The spring acts in adirection to maintain the gear 49 in mesh with the gear 50 so that whenthe operator 41 is turned in one direction it will turn thecounterbalancing drum 36, winding the tape 32 on the drum and therebyelevating the Work holder.

To prevent the rotation of the gear 49 in `the, opposite direction, apawl 54 is mounted '56. A spring 57 maintains the pawl 54 in engagementwiththe gear 49.

The operation of the invention is as follows: The work is securedbeneath the worlrl clamping member 13 and between the line guide 23 andthe work support 8, the line guide being adjusted to the line of sight.The operator, to shift the work, turns the operating member 41 adistance corresponding to the spacing desired. This is repeated untilthe work holder is required to be returned to its initial position, there'- turn being eec'ted by pressing inwardly on the finger piece 47,thereby causingthe gear 49 to disengage with the' gear 50, when theWork'holder or work will drop by gravity. The counterbalancing armabsorbs all of the shock of this descent due to the increase of tensionin the spring 38 as the work holder approaches its lowermost position.

Should it be desired to stop the work holder with this invention isinexpensive to manufacture, simple in its operation, and durable in itsuse. The supporting frame is of novel construction and ,may be made fromsheet metal and steel rods. 'lhe work holder is counterbalanced and inthis way no shock absorbers are required. The mechanism for raising thework holder is readilyoperated and is not liable to get out of order.The operator may obtain any desired-line spacing by properlymanipulating the operating member which isrotated continuously in onedirection. The center of the work holder is easily secured from a pointadjacent the operating` member. The line guide is yadjustable to anyline of sight and is readily accommodated to work of diEer-v entthicknesses. rlhe work clampin device operates in a direction to apply ainding action on the work in proportion to the weight of the work.

ltA will be noted that the two cooperating gears form a make-and-breakmotion-transmitting connection between the rotary shaft and the movableelement of the copy holder and that this connection is controlled by amovement of the shaft separate from its rotary movement.

What l claim as my invention'and desire to secure by Letters Patentis 1. A copy holder comprising a work holder, a supporting frameincluding a base portion formed from sheet-metal of inverted U-shape inhorizontal cross-section, cross pieces within said base portion,uprights on which the work holder is guidedl thrown out of connectionwith the workv `holder to permit the-latterl to lower under its ownweight.

I 5. A copy holder comprising a supporting frame, a work holder movablevertically on the frameya drum arranged on thev ranged with its axisparallel to the axis o the drum and movable axially into and out of meshwith the drum anda shaft extendin in front of the work holder from theaxiallf movable gear by which the latter is turneA d 6. coy y hol er comrisin' a sii ortin frame, a ork holder virnliivabl vertibldlly oigi saidframe, a gear arranged on the supporting frame and having connectionwith the work holder tov raise the latter, a gear' arranged with itsaxis parallel to the axis of lthe first named gear and movable axiallyIinto and out of mesh with the first named gear, an axially movableshaft securedto the axially movable gear, a sleeve surrounding saidshaft and connected to the latter to `canse the same to turn with thesleeve, and a' hand piece on said sleeve.

7 A copy holder comprising a supporting atl frame, a work holdervertically movable onsecured to said'cross pieces and extending memberand having a finger piece portion throughthe top of the base, andconnectingw arranged in proximity thereto, a gear carmeans between saiduprights and a line ried by said shaft, and connections between drum andthe work holder, means. connected to the drum llfor turning the latter,and a5 springl acting on said drum to counterbalancet e work holder.

4. A copy holder comprising a supporting frame, a work holder movablevertically on movable shaft connected to the rotary op-l erating memberand having a finger piece portion arranged in proximity thereto, a gearcarried by said shaft, a pawl mounted to move with said gear, andconnections between the gear and the movable work holder.

9. A copy holder comprising a supporting frame, awork holder verticallymovable fon theframe, a line guide and two supporting members for theline guide pivotally connected together, `one of said supporting memberscarrying the line guide and the other orl said supporting members beingpivotally connected to the supporting frame.

the frame, a spring driim supported on oneF 10. A copy holder comprisinga supportof said parts Iand having a flexible connecing frame, 'a workholder movable vertically tion with the other part adapted to be woundon the frame, a line guide, andtwo supporton the drum to counterbalancethe work. ing members for the line guide, one of the holder, and meansfor .raising the work supporting members vbeing pivotally conholder,said lmeans being adapted to be` nected to a supporting -frame .at therear iso of the work holder and the other of said supporting membersbeing pivotally connected to the first' named supporting members andarranged in front of the work holder, the last named supporting membercarrying the line guide.

11. A copy holder comprising a supporting frame, a work holder movablevertically on the frame, a line guide and two supporting members for theline guide, one of said supporting members being pivoted to thesupporting frame in the rear of thework holder and having arms arrangedeccentrically with relation to the turning axis of the supportingmember, and the other of Said supporting members having a portion lyingin front of the workholder and also arms extending rearwardly from Saidportion and pivotally connected to the eccentrically arranged arms onthe other supporting member, the line guide being pivoted on movingpart, apawl gear from turning in one direction, a shaft Said last namedsupporting member.

12. A copy holder comprising a supporting frame, a work holder movablevertically on the frame, aline guide, and two supporting members for theline guide, one of the supporting members being pivotally connected tothe supporting frame and the other supporting member being pivotallyconnected with the first named supporting member, one of said supportingmembers being offset rearwardly of its pivotal center and the otherbeing offset forwardly pf its pivotal center.

13. In a copy holder having a work support and a line guide; meansforeffecting relative movement between the work support and the line guidecomprising two cooperating rotary gears, means for holding one of saidgears from turning in one direction, means connecting the other geartothe moving part, and means for supporting 4'said first-named gear sothat it may move out Aof connection with theother gear to permit themoving part to return to its initial position.

14. In a copy holder having a work support and a line guide; means foreffecting a relative movement between the work support andthe line guidecomprising two cooperating rotary gears one connected to the for holdingthe other on which the last-named gear` is mounted,

images and means for supporting said shaft for two movements, one toturnthe said gear in one direction and the other to disconnect said gearfrom the first-named gear so that the moving part may return to itsinitial position.

15. In a copy holder having a work support and a line guide; means foreffecting a relative movement between the work support and the lineguide comprising a rotary shaft provided with an operator, connectionbetween Vthe shaft and the moving part, and means for supporting therotary shaft for its rotary movement and also for a second movementseparate from its feeding movement lto break the connection between saidshaft .and the moving part.

16. In a copy holder having a work support and a line guide; means foreffecting a relative movement between the work support and the lineguide comprising a rotary shaft having a movement separate from itsrotary movement, a ratchet for preventing therotation of the shaft inone direction, and a make-and-break, motion-transmitting connectionbetween the rotary shaft and the -moving part, controlled by theseparate movement of the shaft.

17. lin a copy holder having a work support and a line guide; means foreffecting relative movement between the work support and the line guidecomprising a rotary operator, a pawl for preventing the turning of saidoperator ina reverse direction, and a make-and-break,motion-transmitting connection between the operator and theV moving partof the copy holder, controlled by the rotary operator.

18. A copy holder as setforth in claim 13 combined with acounterbalancin device for the moving part, acting to retar the returnof said moving part when the gears are disconnected.

19. A copy holder'as set forth in claim 13 combined with a volutecounterbalancing coil connected to the gear that is connected to themoving-part so as to retard the vreturn movement when the gears y.aredisconnected.

20. A copy holder as set forth in claim 13`combined with a springnormally tending to hold the gears in coperatlon.

FRED Gr. .YAWMAN

